CN115445393A - Method for improving carbon sequestration efficiency of soil and underground water - Google Patents
Method for improving carbon sequestration efficiency of soil and underground water Download PDFInfo
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- CN115445393A CN115445393A CN202211317927.9A CN202211317927A CN115445393A CN 115445393 A CN115445393 A CN 115445393A CN 202211317927 A CN202211317927 A CN 202211317927A CN 115445393 A CN115445393 A CN 115445393A
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- 239000002689 soil Substances 0.000 title claims abstract description 90
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000009919 sequestration Effects 0.000 title claims abstract description 14
- 239000003415 peat Substances 0.000 claims abstract description 38
- 230000008595 infiltration Effects 0.000 claims abstract description 36
- 238000001764 infiltration Methods 0.000 claims abstract description 36
- 230000007480 spreading Effects 0.000 claims abstract description 15
- 238000002386 leaching Methods 0.000 claims abstract description 9
- 238000001179 sorption measurement Methods 0.000 claims abstract description 9
- 238000009736 wetting Methods 0.000 claims abstract description 6
- 230000035699 permeability Effects 0.000 claims abstract description 4
- 239000003673 groundwater Substances 0.000 claims description 4
- 239000002352 surface water Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims 2
- 230000008569 process Effects 0.000 abstract description 6
- 238000004064 recycling Methods 0.000 abstract 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
- B01D53/1475—Removing carbon dioxide
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/001—Runoff or storm water
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Botany (AREA)
- Biotechnology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
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- Physical Or Chemical Processes And Apparatus (AREA)
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Abstract
The invention discloses a method for improving carbon sequestration efficiency of soil and underground water, and relates to the technical field of carbon sequestration increasing and carbon recycling improving. The invention comprises the following steps: firstly, judging and extracting a lead rainfall infiltration replenishment area through site GIS analysis and a DEM three-dimensional model to serve as an area for increasing rainfall infiltration amount; secondly, spreading the peat soil with high adsorbability and high water content space to the area selected in the first step, and wetting the dried peat soil with water before spreading; thirdly, inserting holes into the spread peat soil to enhance the permeability of the spread area, so that more rainfall on the earth surface can enter the soil and underground water space through infiltration to increase the CO adsorbed by the peat soil 2 Amount (v). The invention greatly increases the content of dissolved inorganic carbon entering the soil and underground water through the processes of soil adsorption and rainfall infiltration leaching carrying, thereby leading atmospheric CO to be absorbed by the soil and the rainfall infiltration leaching carrying 2 Stored in deep underground space to increase soil and underground waterThe carbon sequestration efficiency of (2) has important carbon sequestration significance.
Description
Technical Field
The invention belongs to the technical field of increasing carbon sink and improving carbon circulation, and particularly relates to a method for improving carbon sink efficiency of soil and underground water.
Background
China strives to respectively realize the targets of 'carbon neutralization' and 'carbon peak reaching' in 2030 and 2060, and increasing the carbon sink amount and reducing the carbon emission are the most urgent means for realizing the two targets. However, under the existing international economic pressure, certain difficulties exist in ensuring the good development of economy and the promotion of emission reduction work. Therefore, adding carbon sinks, or finding new ways to carbon sinks, is an important link to achieve both goals. Carbon sink is to remove CO from the atmosphere 2 Mechanism for removal, i.e. of atmospheric CO 2 Absorbing into ecological systems such as land and sea, and storing. Wherein the soil and groundwater can be treated by the karst action of the rock and CO 2 Hydrolysis with water to remove atmospheric CO 2 Form dissolved inorganic carbon (mainly comprising several forms, i.e. dissolved CO) 2 (aq)、HCO 3 - Ions and CO 3 2- Ions). The dissolved inorganic carbon formed in the part mainly enters the soil and the underground space through the rainfall infiltration passage and is stored under the action of rainfall infiltration scouring to form CO for reducing the atmosphere 2 The carbon sequestration process of (1). In this process, two steps are important, firstly the soil is protected from CO 2 The surface soil has larger pores and can absorb and store atmospheric CO 2 . However, the nature of the soilDifferent, their porosity and adsorption capacity are different; second, CO adsorbed and stored by the soil 2 If the carbon dioxide enters the deep underground space or the flowing underground water space in time, the carbon dioxide will return to the atmosphere and cannot form carbon sink, and the main driving force of the process is the leaching effect of rainfall infiltration, namely the amount of the rainfall infiltration entering the underground water needs to be increased to increase the CO more 2 And into the deep subsurface, creating more carbon sink.
It can be seen that the adsorption of CO to the soil is increased 2 The performance and rainfall infiltration increase of the method are main measures for realizing the carbon sink increment, so that a method for improving the carbon sink efficiency of soil and underground water is developed to improve the carbon sink increase engineering technology of China and improve the practical application prospect of the carbon sink.
Disclosure of Invention
The invention aims to provide a technology for improving carbon sink efficiency of soil and underground water by increasing CO absorption of soil 2 According to CO 2 The combination form and the flow circulation mode of the system and water in the earth surface process realize the increase of the absorption and storage of CO in soil and underground water by improving the rainfall infiltration performance of an earth surface system 2 The carbon sequestration efficiency of (2) solves the problems in the background art.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a method for improving carbon sink efficiency of soil and underground water, which comprises the following steps:
judging and extracting a leading rainfall infiltration replenishment area through field GIS analysis and a DEM three-dimensional model, wherein the leading rainfall infiltration replenishment area comprises rainfall surface runoff collection areas such as gullies and depression formed after rainfall in the area, and the rainfall surface runoff collection areas serve as areas for increasing rainfall infiltration amount;
and in the second step, the peat soil has huge water absorption and retention performances, high porosity and strong adsorption performance, is a very good soil improvement material, and is relatively suitable to be used as a physical soil improvement agent. Spreading peat soil with high adsorbability and high water content space to the area selected in the first step, wherein the spreading thickness is 5-10cm, wetting the dried peat soil with water before spreading, and ensuring that the water content is 45% -55%;
thirdly, adopting a stainless steel vertical rod with the diameter of 1cm and the length of 100cm, and inserting holes with the density of 10cm multiplied by 10cm in the area where the peat soil is paved, so that the permeability of the paved area is enhanced, more rainfall on the earth surface can enter the soil and underground water space through infiltration, and further the CO adsorbed by the peat soil is increased 2 An amount;
fourthly, in the season without rainfall, increasing the water infiltration amount by adopting a manual watering mode, and increasing the CO adsorbed by the peat soil in a leaching mode 2 Amount to atmospheric CO 2 Absorbing and storing the carbon dioxide in soil and underground water to form dissolved inorganic carbon so as to achieve the purpose of carbon sink.
Preferably, the leading rainfall infiltration replenishment area in the first step is used as a rainfall surface runoff collection area which comprises gullies and depressions formed due to rainfall.
Preferably, the step of spreading the peat soil in the second step specifically includes the following steps: and (3) flatly paving the peat soil with high adsorbability and high water content space to the area selected in the first step, wherein the flatly paving thickness is 5-10cm, and wetting the dried peat soil with water before flatly paving to ensure that the water content of the wetted peat soil is 45% -55%.
Preferably, the third step of inserting the holes into the tiled peat soil specifically includes the following steps: vertical rods with the diameter of 1cm and the length of 100cm are inserted into the spread peat soil to form jacks with the density of 10cm multiplied by 10cm, so that more rainfall on the ground surface can enter the soil and underground water space through infiltration to increase CO adsorbed by the peat soil 2 Amount of the compound (A).
Preferably, the dissolved inorganic carbon comprises dissolved CO 2 、HCO 3 - Ions and CO 3 2- Ions.
Preferably, the surface water body contains two sources of dissolved inorganic carbon, wherein one source of dissolved inorganic carbon is dissolved inorganic carbon in atmospheric rainfall, and the other source of dissolved inorganic carbon is atmospheric CO absorbed by soil 2 。
The invention has the following beneficial effects:
the invention can greatly increase the content of dissolved inorganic carbon entering the soil and underground water through the processes of soil adsorption and rainfall infiltration leaching carrying, thereby leading atmospheric CO to be absorbed by the soil and the rainfall infiltration leaching carrying 2 Stored in deep underground space, improves the carbon sequestration efficiency of soil and underground water, has important carbon sequestration significance, and can realize CO in the atmosphere 2 Without the negative environmental effect.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention relates to a method for improving carbon sink efficiency of soil and underground water, which comprises the following steps:
judging and extracting a leading rainfall infiltration replenishment region through field GIS analysis and a DEM three-dimensional model, wherein the leading rainfall infiltration replenishment region comprises rainfall surface runoff collection regions such as gullies and depressions formed after rainfall in the region, and the rainfall surface runoff collection regions are used as regions for increasing rainfall infiltration amount;
and in the second step, the peat soil has huge water absorption and retention performances, high porosity and strong adsorption performance, is a very good soil improvement material, and is relatively suitable to be used as a physical soil improvement agent. Spreading peat soil with high adsorbability and high water content space to the area selected in the first step, wherein the spreading thickness is 5-10cm, wetting the dried peat soil with water before spreading, and ensuring that the water content is 50%;
thirdly, adopting a stainless steel vertical rod with the diameter of 1cm and the length of 100cm, and inserting holes in the area where the peat soil is flatly paved at the density of 10cm multiplied by 10cm, so that the permeability of the flatly paved area is enhanced, and the peat soil is enabled to be more easily paved at the area where the peat soil is pavedMore surface rainfall can enter the soil and underground water space through infiltration, and further the CO adsorbed by the peat soil is increased 2 An amount;
fourthly, in the season without rainfall, increasing the water infiltration amount by adopting a manual watering mode, and increasing the CO adsorbed by the peat soil in a leaching mode 2 Amount to get atmospheric CO 2 Absorbing and storing the carbon dioxide in soil and underground water to form dissolved inorganic carbon so as to achieve the purpose of carbon sink.
According to statistical analysis, the higher the adsorption performance of the soil is, the higher the soil can adsorb the atmospheric CO 2 The stronger the ability of (c); in addition, the more rainfall infiltration channels of the soil, the stronger the rainfall infiltration capacity, and the CO carried by the rainfall infiltration eluviation 2 The more, therefore, by increasing soil CO 2 The method of the adsorption capacity and the rainfall infiltration capacity can effectively increase the content of dissolved inorganic carbon entering the water body by 2 to 3 times, further increase the formed carbon sink amount by 2 to 3 times, and has important economic prospect of carbon sink.
In this example, the Dissolved Inorganic Carbon (DIC) comprises dissolved CO 2 、HCO 3 - Ions and CO 3 2- Ions.
In this embodiment, the surface water body has two sources of dissolved inorganic carbon, one of the two sources of dissolved inorganic carbon is dissolved inorganic carbon in atmospheric rainfall, and the other source of dissolved inorganic carbon is atmospheric CO absorbed by soil 2 。
Increasing the dissolution into soil and underground water is the fundamental key to increase the carbon sink. The Dissolved Inorganic Carbon (DIC) in soil and underground water body has two sources, and the peat soil absorbs atmospheric CO with high adsorptivity 2 And the dissolved inorganic carbon carried and absorbed by the rainfall infiltration leaching solution. Wherein, the two parts realize the CO conversion of the atmosphere 2 The most predominant CO is for purposes of atmospheric abatement, diversion and eventual storage in soil and groundwater 2 The carbon sink mode achieves the purpose of increasing carbon sink, and provides scientific and technological support for national carbon sink increase and the important targets of carbon peak reaching and carbon neutralization.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. A method for improving carbon sequestration efficiency of soil and underground water is characterized by comprising the following steps: the method comprises the following steps:
judging and extracting a lead precipitation infiltration replenishment area through field GIS analysis and a DEM three-dimensional model to be used as an area for increasing precipitation infiltration amount;
secondly, spreading the peat soil with high adsorbability and high water content space to the area selected in the first step, and wetting the dried peat soil with water before spreading;
thirdly, inserting holes into the spread peat soil to enhance the permeability of the spread area, so that more rainfall on the earth surface can enter the soil and underground water space through infiltration to increase the CO adsorbed by the peat soil 2 An amount;
fourthly, in the season without rainfall, increasing the water infiltration amount by adopting a mode of manual sprinkling or leaching to realize the adsorption of CO on the peat soil 2 The amount is increased to reach the atmospheric CO 2 Absorbed and stored in soil and groundwater to form solutionThe inorganic carbon is decomposed, and then the purpose of carbon sink is achieved.
2. The method for improving soil and groundwater carbon sequestration efficiency according to claim 1, wherein the leading rainfall infiltration recharge area in the first step is a rainfall surface runoff collection area comprising gullies and depressions due to rainfall.
3. The method for improving the carbon sequestration efficiency of soil and underground water according to claim 1, wherein the step of spreading peat soil in the second step comprises the following steps: and (3) spreading peat soil with high adsorbability and high water content space to the area selected in the first step, wherein the spreading thickness is 5-10cm, and wetting the dried peat soil with water before spreading to ensure that the water content of the wetted peat soil is 45% -55%.
4. The method for improving the carbon sink efficiency of soil and underground water according to claim 1, wherein the third step of inserting the hole into the tiled peat soil comprises the following steps: vertical rods with the diameter of 1cm and the length of 100cm are inserted into the spread peat soil to form jacks with the density of 10cm multiplied by 10cm, so that more rainfall on the ground surface can enter the soil and underground water space through infiltration to increase CO adsorbed by the peat soil 2 Amount of the compound (A).
5. The method of claim 1, wherein the dissolved inorganic carbon comprises dissolved CO 2 、HCO 3 - Ions and CO 3 2- Ions.
6. The method for improving carbon sequestration efficiency between soil and underground water according to claim 1, wherein the surface water body contains two sources of dissolved inorganic carbon, one source of dissolved inorganic carbon is dissolved inorganic carbon in atmospheric rainfall, and the other source of dissolved inorganic carbon is atmospheric CO absorbed by soil 2 。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2022100733149 | 2022-01-21 | ||
| CN202210073314.9A CN114522512A (en) | 2022-01-21 | 2022-01-21 | Method for increasing aquatic carbon sink amount |
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| Publication Number | Publication Date |
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| CN115445393A true CN115445393A (en) | 2022-12-09 |
| CN115445393B CN115445393B (en) | 2024-04-26 |
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| CN202210073314.9A Pending CN114522512A (en) | 2022-01-21 | 2022-01-21 | Method for increasing aquatic carbon sink amount |
| CN202211317927.9A Active CN115445393B (en) | 2022-01-21 | 2022-10-26 | Method for improving carbon sink efficiency of soil and underground water |
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| CN202210073314.9A Pending CN114522512A (en) | 2022-01-21 | 2022-01-21 | Method for increasing aquatic carbon sink amount |
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| CN117069270B (en) * | 2023-08-18 | 2024-06-14 | 中国科学院地球化学研究所 | Method for increasing carbon sink of water body and relieving eutrophication of water body |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102577688A (en) * | 2012-03-13 | 2012-07-18 | 黑龙江省科学院自然与生态研究所 | Moisture management method for carbon sequestration and carbon sink increase for wetlands |
| CN105130001A (en) * | 2015-09-18 | 2015-12-09 | 云南省农业科学院农业环境资源研究所 | Method for establishing nature-simulated ecological farmland |
| CN106577116A (en) * | 2016-11-30 | 2017-04-26 | 浙江科技学院 | Method used for performing carbon sequestration and carbon sink increase on bamboo stands through biogas slurry |
| AU2020202329A1 (en) * | 2019-04-02 | 2020-10-22 | Inter Earth Pty Ltd | Enhanced Biomass-based CO2 Sequestration |
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- 2022-01-21 CN CN202210073314.9A patent/CN114522512A/en active Pending
- 2022-10-26 CN CN202211317927.9A patent/CN115445393B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102577688A (en) * | 2012-03-13 | 2012-07-18 | 黑龙江省科学院自然与生态研究所 | Moisture management method for carbon sequestration and carbon sink increase for wetlands |
| CN105130001A (en) * | 2015-09-18 | 2015-12-09 | 云南省农业科学院农业环境资源研究所 | Method for establishing nature-simulated ecological farmland |
| CN106577116A (en) * | 2016-11-30 | 2017-04-26 | 浙江科技学院 | Method used for performing carbon sequestration and carbon sink increase on bamboo stands through biogas slurry |
| AU2020202329A1 (en) * | 2019-04-02 | 2020-10-22 | Inter Earth Pty Ltd | Enhanced Biomass-based CO2 Sequestration |
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| CN114522512A (en) | 2022-05-24 |
| CN115445393B (en) | 2024-04-26 |
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